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<?php abstract class PageObject { const X = "Don't print this!"; public function __construct() { echo self::X; echo static::X; echo parent::X; } } class Test extends PageObject { const X = "OMG"; public function __construct() { parent::__construct(); } } $x = new Test;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Cannot use "parent" when current class scope has no parent in /in/9fLAG on line 11
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Cannot use "parent" when current class scope has no parent in /in/9fLAG on line 11 Don't print this!OMG Fatal error: Uncaught Error: Cannot access parent:: when current class scope has no parent in /in/9fLAG:11 Stack trace: #0 /in/9fLAG(21): PageObject->__construct() #1 /in/9fLAG(27): Test->__construct() #2 {main} thrown in /in/9fLAG on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Don't print this!OMG Fatal error: Uncaught Error: Cannot access parent:: when current class scope has no parent in /in/9fLAG:11 Stack trace: #0 /in/9fLAG(21): PageObject->__construct() #1 /in/9fLAG(27): Test->__construct() #2 {main} thrown in /in/9fLAG on line 11
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Don't print this!OMG Fatal error: Cannot access parent:: when current class scope has no parent in /in/9fLAG on line 11
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STATIC in /in/9fLAG on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STATIC in /in/9fLAG on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/9fLAG on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/9fLAG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9fLAG on line 3
Process exited with code 255.

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